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Sensitivity of Hurricane Intensity Forecast to Convective Momentum Transport Parameterization
Publisher: American Meteorological Society
Abstract: A parameterization of the convection-induced pressure gradient force (PGF) in convective momentum transport (CMT) is tested for hurricane intensity forecasting using NCEP's operational Global Forecast System (GFS) and its ...
TKE-Based Moist Eddy-Diffusivity Mass-Flux (EDMF) Parameterization for Vertical Turbulent Mixing
Publisher: American Meteorological Society
Abstract: AbstractA new turbulent kinetic energy (TKE)-based moist eddy-diffusivity mass-flux (EDMF) vertical turbulence mixing scheme (EDMF-TKE) is developed, where the nonlocal transport by large turbulent eddies is represented ...
Revision of Convection and Vertical Diffusion Schemes in the NCEP Global Forecast System
Publisher: American Meteorological Society
Abstract: new physics package containing revised convection and planetary boundary layer (PBL) schemes in the National Centers for Environmental Prediction?s Global Forecast System is described. The shallow convection (SC) scheme ...
Intercomparison of Global Reanalyses and Regional Simulations of Cold Season Water Budgets in the Western United States
Publisher: American Meteorological Society
Abstract: Estimating water budgets of river basins in the western United States is a challenge because of the effects of complex terrain and lack of comprehensive observational datasets. This study aims at comparing different estimates ...
Sensitivity of a Cumulus Parameterization Scheme to Precipitation Production Representation and Its Impact on a Heavy Rain Event over Korea
Publisher: American Meteorological Society
Abstract: he sensitivity of a cumulus parameterization scheme (CPS) to a representation of precipitation production is examined. To do this, the parameter that determines the fraction of cloud condensate converted to precipitation ...
Orographic Influence on a Drifting Cyclone
Publisher: American Meteorological Society
Abstract: In this study, a primitive equation numerical model is adopted to investigate the orographic influence on a drifting cyclone over an idealized topography similar to that of Taiwan. For a cyclone propagating from the east ...
Untitled
Publisher: American Meteorological Society
Abstract: AbstractThe current operational NCEP Global Forecast System (GFS) cumulus convection schemes are updated with a scale-aware parameterization where the cloud mass flux decreases with increasing grid resolution. The ratio ...
Simulation of the Summer Monsoon Rainfall over East Asia Using the NCEP GFS Cumulus Parameterization at Different Horizontal Resolutions
Publisher: American Meteorological Society
Abstract: he most recent version of the simplified Arakawa?Schubert (SAS) cumulus scheme in the National Centers for Environmental Prediction (NCEP) Global Forecast System (GFS) (GFS SAS) is implemented in the Weather Research and ...
Improving the Intensity Forecast of Tropical Cyclones in the Hurricane Analysis and Forecast System
Publisher: American Meteorological Society